<?php // $Id: index.php,v 1.10.2.5 2008/02/26 07:28:01 scyrma Exp $
	  // Allows a creator to edit custom outcomes, and also display help about outcomes

///////////////////////////////////////////////////////////////////////////
//																	   //
// NOTICE OF COPYRIGHT												   //
//																	   //
// Moodle - Modular Object-Oriented Dynamic Learning Environment		 //
//		  http://moodle.com											//
//																	   //
// Copyright (C) 1999 onwards  Martin Dougiamas  http://moodle.com	   //
//																	   //
// This program is free software; you can redistribute it and/or modify  //
// it under the terms of the GNU General Public License as published by  //
// the Free Software Foundation; either version 2 of the License, or	 //
// (at your option) any later version.								   //
//																	   //
// This program is distributed in the hope that it will be useful,	   //
// but WITHOUT ANY WARRANTY; without even the implied warranty of		//
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the		 //
// GNU General Public License for more details:						  //
//																	   //
//		  http://www.gnu.org/copyleft/gpl.html						 //
//																	   //
///////////////////////////////////////////////////////////////////////////

require_once '../../../config.php';
require_once($CFG->dirroot.'/lib/formslib.php');
require_once $CFG->dirroot.'/grade/lib.php';
require_once $CFG->libdir.'/gradelib.php';

$courseid = optional_param('id', 0, PARAM_INT);
$action   = optional_param('action', '', PARAM_ALPHA);

/// Make sure they can even access this course
if ($courseid) {
	if (!$course = get_record('course', 'id', $courseid)) {
		print_error('nocourseid');
	}
	require_login($course);
	$context = get_context_instance(CONTEXT_COURSE, $course->id);
	require_capability('moodle/grade:manageoutcomes', $context);

	if (empty($CFG->enableoutcomes)) {
		redirect('../../index.php?id='.$courseid);
	}

} else {
	require_once $CFG->libdir.'/adminlib.php';
	admin_externalpage_setup('outcomes');
}

/// return tracking object
$gpr = new grade_plugin_return(array('type'=>'edit', 'plugin'=>'outcome', 'courseid'=>$courseid));

require_once('import_outcomes_form.php');
$upload_form = new import_outcomes_form();

if ($upload_form_data = $upload_form->get_data()) {
	require_once('import.php');
	exit();
}


$strgrades = get_string('grades');
$pagename  = get_string('outcomes', 'grades');

$navigation = grade_build_nav(__FILE__, $pagename, $courseid);

$strshortname		= get_string('shortname');
$strfullname		 = get_string('fullname');
$strscale			= get_string('scale');
$strstandardoutcome  = get_string('outcomesstandard', 'grades');
$strcustomoutcomes   = get_string('outcomescustom', 'grades');
$strdelete		   = get_string('delete');
$stredit			 = get_string('edit');
$strcreatenewoutcome = get_string('outcomecreate', 'grades');
$stritems			= get_string('items', 'grades');
$strcourses		  = get_string('courses');
$stredit			 = get_string('edit');

switch ($action) {
	case 'delete':
		if (!confirm_sesskey()) {
			break;
		}
		$outcomeid = required_param('outcomeid', PARAM_INT);
		if (!$outcome = grade_outcome::fetch(array('id'=>$outcomeid))) {
			break;
		}

		if (empty($outcome->courseid)) {
			require_capability('moodle/grade:manage', get_context_instance(CONTEXT_SYSTEM));
		} else if ($outcome->courseid != $courseid) {
			error('Incorrect courseid!');
		}

		if (!$outcome->can_delete()) {
			break;
		}

		$deleteconfirmed = optional_param('deleteconfirmed', 0, PARAM_BOOL);

		if(!$deleteconfirmed){
			print_header(get_string('outcomedelete', 'grades'));
			notice_yesno(get_string('outcomeconfirmdelete', 'grades', $outcome->fullname), 
					"index.php?id={$courseid}", "index.php?id={$courseid}",
					array('outcomeid' => $outcome->id, 
						'action'=> 'delete', 
						'sesskey' =>  $USER->sesskey, 
						'deleteconfirmed'=> 1)
					);
			print_footer();
			die;
		}else{
			$outcome->delete();
		}
		break;
}

$systemcontext = get_context_instance(CONTEXT_SYSTEM);
$caneditsystemscales = has_capability('moodle/course:managescales', $systemcontext);

if ($courseid) {
	/// Print header
	print_header_simple($strgrades.': '.$pagename, ': '.$strgrades, $navigation, '', '', true, '', navmenu($course));
	/// Print the plugin selector at the top
	print_grade_plugin_selector($courseid, 'edit', 'outcome');

	$caneditcoursescales = has_capability('moodle/course:managescales', $context);

	$currenttab = 'outcomes';
	require('tabs.php');

} else {
	admin_externalpage_print_header();
	$caneditcoursescales = $caneditsystemscales;
}


$outcomes_tables = array();

if ($courseid and $outcomes = grade_outcome::fetch_all_local($courseid)) {

	$return = print_heading($strcustomoutcomes, '', 2, 'main', true);
	$data = array();
	foreach($outcomes as $outcome) {
		$line = array();
		$line[] = $outcome->get_name();
		$line[] = $outcome->get_shortname();

		$scale = $outcome->load_scale();
		if (empty($scale->id)) {   // hopefully never happens
			$line[] = $scale->get_name();
		} else {
			if (empty($scale->courseid)) {
				$caneditthisscale = $caneditsystemscales;
			} else if ($scale->courseid == $courseid) {
				$caneditthisscale = $caneditcoursescales;
			} else {
				$context = get_context_instance(CONTEXT_COURSE, $scale->courseid);
				$caneditthisscale = has_capability('moodle/course:managescales', $context);
			}
			if ($caneditthisscale) {
				$url = $CFG->wwwroot.'/grade/edit/scale/edit.php?courseid='.$courseid.'&amp;id='.$scale->id;
				$url = $gpr->add_url_params($url);
				$line[] = '<a href="'.$url.'">'.$scale->get_name().'</a>';
			} else {
				$line[] = $scale->get_name();
			}
		}

		$line[] = $outcome->get_item_uses_count();

		$buttons = "";
		$buttons .= "<a title=\"$stredit\" href=\"edit.php?courseid=$courseid&amp;id=$outcome->id\"><img".
					" src=\"$CFG->pixpath/t/edit.gif\" class=\"iconsmall\" alt=\"$stredit\" /></a> ";
		if ($outcome->can_delete()) {
			$buttons .= "<a title=\"$strdelete\" href=\"index.php?id=$courseid&amp;outcomeid=$outcome->id&amp;action=delete&amp;sesskey=$USER->sesskey\"><img".
						" src=\"$CFG->pixpath/t/delete.gif\" class=\"iconsmall\" alt=\"$strdelete\" /></a> ";
		}
		$line[] = $buttons;
		
		$data[] = $line;
	}
	$table = new object();
	$table->head  = array($strfullname, $strshortname, $strscale, $stritems, $stredit);
	$table->size  = array('30%', '20%', '20%', '20%', '10%' );
	$table->align = array('left', 'left', 'left', 'center', 'center');
	$table->width = '90%';
	$table->data  = $data;
	$return .= print_table($table, true);
	$outcomes_tables[] = $return;
}


if ($outcomes = grade_outcome::fetch_all_global()) {

	$return = print_heading($strstandardoutcome, '', 2, 'main', true); 
	$data = array();
	foreach($outcomes as $outcome) {
		$line = array();
		$line[] = $outcome->get_name();
		$line[] = $outcome->get_shortname();

		$scale = $outcome->load_scale();
		if (empty($scale->id)) {   // hopefully never happens
			$line[] = $scale->get_name();
		} else {
			if (empty($scale->courseid)) {
				$caneditthisscale = $caneditsystemscales;
			} else if ($scale->courseid == $courseid) {
				$caneditthisscale = $caneditcoursescales;
			} else {
				$context = get_context_instance(CONTEXT_COURSE, $scale->courseid);
				$caneditthisscale = has_capability('moodle/course:managescales', $context);
			}
			if ($caneditthisscale) {
				$url = $CFG->wwwroot.'/grade/edit/scale/edit.php?courseid='.$courseid.'&amp;id='.$scale->id;
				$url = $gpr->add_url_params($url);
				$line[] = '<a href="'.$url.'">'.$scale->get_name().'</a>';
			} else {
				$line[] = $scale->get_name();
			}
		}

		$line[] = $outcome->get_course_uses_count();
		$line[] = $outcome->get_item_uses_count();

		$buttons = "";
		if (has_capability('moodle/grade:manage', get_context_instance(CONTEXT_SYSTEM))) {
			$buttons .= "<a title=\"$stredit\" href=\"edit.php?courseid=$courseid&amp;id=$outcome->id\"><img".
						" src=\"$CFG->pixpath/t/edit.gif\" class=\"iconsmall\" alt=\"$stredit\" /></a> ";
		}
		if (has_capability('moodle/grade:manage', get_context_instance(CONTEXT_SYSTEM)) and $outcome->can_delete()) {
			$buttons .= "<a title=\"$strdelete\" href=\"index.php?id=$courseid&amp;outcomeid=$outcome->id&amp;action=delete&amp;sesskey=$USER->sesskey\"><img".
						" src=\"$CFG->pixpath/t/delete.gif\" class=\"iconsmall\" alt=\"$strdelete\" /></a> ";
		}
		$line[] = $buttons;

		$data[] = $line;
	}
	$table = new object();
	$table->head  = array($strfullname, $strshortname, $strscale, $strcourses, $stritems, $stredit);
	$table->size  = array('30%', '20%', '20%', '10%', '10%', '10%');
	$table->align = array('left', 'left', 'left', 'center', 'center', 'center');
	$table->width = '90%';
	$table->data  = $data;
	$return .= print_table($table, true);
	$outcomes_tables[] = $return;
}

foreach($outcomes_tables as $table) {
	print($table);
}

echo '<div class="buttons">';
print_single_button('edit.php', array('courseid'=>$courseid), $strcreatenewoutcome);
if ( !empty($outcomes_tables) ) {
	print_single_button('export.php', array('id'=>$courseid, 'sesskey'=>sesskey()),  get_string('exportalloutcomes', 'grades'));
}
echo '</div>';

$upload_form->display();

if ($courseid) {
	print_footer($course);
} else {
	admin_externalpage_print_footer();
}

?>
